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Finding the Fourth Proportional to 249,383, 344,148.54 and 136,206.02

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Solution

The fourth proportional to 249,383, 344,148.54 and 136,206.02 is: 187,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,383 : 344,148.54 = 136,206.02 : x
  2. Step 2: Convert to fraction form
    249,383/344,148.54 = 136,206.02/x
  3. Step 3: Cross multiply
    249,383x = 344,148.54 × 136,206.02
  4. Step 4: Simplify right side
    249,383x = 46,875,102,922.21
  5. Step 5: Solve for x
    x = 46,875,102,922.21/249,383
  6. Step 6: Final answer
    x = 187,964.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.